<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>margin</title>
		<style>
			* {
				margin: 0;
				padding: 0;
			}

			.box {
				width: 200px;
				height: 200px;
				border: 2px solid #000000;
				/* margin-top: 30px; */
				/* margin-bottom: 30px; */
				/* margin-left: 30px */
				/* margin: 50px 10px 100px  200px; */
				/* margin: 100px 200px; */
				/* margin: 10px 100px 80px; */
				padding: 20px 30px;
				box-sizing: border-box;
			}
		</style>
	</head>
	<body>
		<div class="box">

		</div>
		<p>123</p>
	</body>
</html>
